Dish washing machine

Abstract

The invention discloses a dish-washing machine. The dish-washing machine aims at achieving the full-coverage spraying effect on the interior of the dish-washing machine. The dish-washing machine comprises a spraying arm, the spraying arm is rotatably arranged in the dish-washing machine, and at least one end of the spraying arm abuts against the inner wall of the dish-washing machine. In the working process of the dish-washing machine, the end, abutting against the inner wall of the dish-washing machine, of the spraying arm conducts all-directional cleaning along the inner wall of the dish-washing machine, all washing areas of the dish-washing machine are covered, the problem that a traditional spraying system is insufficient in covering can be effectively solved, it is guaranteed that tableware is fully cleaned and rinsed, and the overall washing efficiency and cleanliness are improved.

Description

Technical Field

[0001] This invention relates to the field of dishwashers, specifically to a dishwasher. Background Technology

[0002] With modern families demanding higher standards of kitchen cleanliness, dishwashers have become an indispensable kitchen appliance for many households. The dishwasher's spray system is one of the core components ensuring efficient cleaning of dishes. Current dishwasher spray structures mainly consist of multiple spray arms that clean dishes through spray water. However, existing spray systems have certain limitations in terms of spray effectiveness.

[0003] Traditional spray systems typically use fixed-position spray arms, which can lead to uneven spray coverage, leaving some areas of dishes unwashed. Furthermore, the rotation range of the spray arms and the spray angle of the nozzles may not be optimized, making it difficult to achieve comprehensive spray coverage. Therefore, improving the spray system to achieve full coverage of the dishwasher's interior and ensure effective cleaning of every corner has become a crucial technological challenge.

[0004] In the prior art, Chinese invention patent application number CN 2018115480353 discloses a spray structure for a dishwasher and a dishwasher having the spray structure, including a first spray arm disposed inside the dishwasher and capable of rotation; a second spray arm disposed on the first spray arm and capable of rotational spraying; and a water inlet pipe connected to the first spray arm to provide spray water to the first spray arm; the first spray arm is provided with a first spray hole for spraying spray water; and the second spray arm is provided with a second spray hole for spraying spray water. Although this application increases the spray range of the spray arm by providing a rotatable second spray arm on the first spray arm, it cannot effectively treat the corners inside the dishwasher.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] This invention discloses a dishwasher, which includes a spray arm with spray holes communicating with a spray water path. The spray arm is rotatably disposed inside the dishwasher, and at least one end abuts against the inner wall of the dishwasher. During operation, the end of the spray arm abutting against the inner wall of the dishwasher performs all-around cleaning along the inner wall. This close contact with the inner wall ensures comprehensive cleaning of the dishwasher's interior, enhancing its cleaning effect.

[0007] To achieve the above objectives, the present invention discloses a dishwasher, wherein the spray structure includes a spray arm with spray holes communicating with the spray water channel, the spray arm is rotatably disposed inside the dishwasher, and at least one end of the spray arm abuts against the inner wall of the dishwasher.

[0008] Optionally, the spray arm includes a first spray arm and a second spray arm;

[0009] The first spray arm is rotatably mounted inside the dishwasher and maintains a gap with the inner wall of the dishwasher;

[0010] The first end of the second spray arm is disposed on the first spray arm, and the second end abuts against the wall inside the dishwasher;

[0011] Preferably, the first end of the second spray arm is rotatably mounted on the first spray arm.

[0012] Optionally, the second spray arm is provided with a rotating wheel, which causes the second end of the second spray arm to abut against the inner wall of the dishwasher;

[0013] Preferably, the second end includes an end face, an active face, and a passive face;

[0014] The active surface is the side of the second spray arm that moves first in the direction of rotation and comes into contact with the water or air during the rotation process.

[0015] The passive surface is the side that is positioned opposite to the active surface;

[0016] The rotating wheel is a single wheel, located on the side of the end face closer to the active surface;

[0017] Alternatively, the rotating wheel can be a single wheel, located on the side of the active surface near the end face;

[0018] Alternatively, there may be two rotating wheels, one located on the side of the end face closer to the active surface and the other on the side of the active surface closer to the end face.

[0019] More preferably, there is one rotating wheel, which is located at the intersection of the end face and the active face, and the rotating wheel is made of an elastic material.

[0020] Optionally, the first spray arm is rotatably mounted inside the dishwasher via a rotating shaft;

[0021] The second spray arm is rotatably connected to the first spray arm via a connecting part;

[0022] Preferably, the connecting part connects the spray water path of the first spray arm and the second spray arm;

[0023] The second end is provided with a spray hole that communicates with the spray water channel;

[0024] The spray holes are opened on the passive surface of the second spray arm and are spaced apart from the end face;

[0025] Preferably, the opening of the injection hole is inclined toward the end face.

[0026] Optionally, spray holes communicating with the spray water channel are opened on the upper end face of the first spray arm and the second spray arm.

[0027] The spray holes are arranged along the length of the first and second spray arms.

[0028] Optionally, the connecting part includes a hollow second rotating shaft;

[0029] The first spray arm and / or the second spray arm are provided with mounting holes that communicate with the spray water channel;

[0030] The connecting part is connected to the spray water path of the first spray arm and the second spray arm through the second rotating shaft;

[0031] Preferably, one end of the second rotating shaft is fixedly connected to the second spray arm, and the other end is fitted into the mounting hole of the first spray arm.

[0032] Optionally, the periphery of the second rotating shaft is provided with a support rib protruding from the surface of the second spray arm, and the first spray arm is provided with a mounting groove that cooperates with the support rib for installation.

[0033] Preferably, the mounting end of the support rib extends from the second spray arm in a direction away from the second spray arm, and the end face of the extended rib extends in a direction away from the radial direction.

[0034] The lower inner edge of the mounting hole is recessed to form a mounting groove, which is fitted to the end face of the support rib for installation.

[0035] Optionally, the connecting part is located at the end of the first spray arm away from the rotation axis;

[0036] Preferably, the connecting part is located at the upper end of the first spray arm.

[0037] Optionally, the center of the first spray arm is located on the first rotating shaft.

[0038] The connecting part is a single unit, located at one end of the first spray arm;

[0039] Alternatively, there may be two connecting parts, respectively located at both ends of the first spray arm.

[0040] Optionally, the connecting part is a single unit, located at one end of the rotating shaft of the first spray arm;

[0041] The first spray arm has a side with a connecting part and a side without a connecting part, and the spray holes are asymmetrically arranged relative to the rotation axis.

[0042] On the side without a connection, the spray holes extend to a point further away from the axis of rotation.

[0043] The present invention has at least the following beneficial effects:

[0044] 1. The present invention provides a second spray arm that is always in contact with the inner wall on the first spray arm. This design ensures that the spray arm can effectively clean every corner and edge area inside the dishwasher during rotation, thereby improving the cleaning coverage and overall cleaning effect.

[0045] 2. By incorporating a rotating wheel at the end of the second spray arm, smooth contact between the spray arm and the inner wall is ensured during rotation, while reducing friction and noise. This design enhances the smoothness of dishwasher operation, reduces operating noise, and improves the user experience.

[0046] 3. The connecting part in this invention includes a hollow second rotating shaft, which not only realizes the connection of the water channel between the first spray arm and the second spray arm, but also improves the sealing and stability of the connecting parts through the design of the support ribs and the mounting groove, ensuring the high efficiency of water flow transmission and the durability of the system. Attached Figure Description

[0047] The accompanying drawings, as part of this invention, are provided to further illustrate the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation thereof. Clearly, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0048] In the attached diagram:

[0049] Figure 1 This is a schematic diagram of the spray arm described in this invention in a dishwasher;

[0050] Figure 2 This is a schematic diagram illustrating the arrangement of the first and second spray arms according to the present invention.

[0051] Figure 3 This is a schematic diagram of one installation method for the second spray arm and the first spray arm;

[0052] Figure 4 This is a schematic diagram of one installation method of the second spray arm inside the first spray arm.

[0053] Figure 5 This is a schematic diagram of one structure of the second spray arm.

[0054] 1. Dishwasher; 11. Spray arm; 12. First rotating shaft; 111. First spray arm; 112. Second spray arm; 112-a. End face; 112-b. Active face; 112-c. Passive face; 1121. Rotating wheel; 1122. Spray hole; 1123. Spray hole; 113. Connecting part; 1131. Second rotating shaft; 1132. Mounting hole; 1133. Support rib.

[0055] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0056] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. Those skilled in the art will understand that the following embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0057] In the description of this invention, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0059] like Figures 1 to 5 As shown, this invention discloses a dishwasher 1, which includes a rotatable spray arm 11. The spray arm 11 is rotatably disposed inside the dishwasher 1 and can rotate about its fixed axis. The design of the spray arm 11 allows it to maintain contact with the inner wall of the dishwasher 1 at least at one end while rotating inside the dishwasher 1. It is provided with spray holes 1123 communicating with the spray water channels. This design ensures that the spray arm 11 can achieve relatively comprehensive spray coverage inside the dishwasher 1 when rotating, thereby improving the cleaning effect.

[0060] It should be noted that the inner wall of dishwasher 1 is generally the inner wall of the inner tub of dishwasher 1.

[0061] To achieve better spraying results, the spray arm 11 is provided with multiple spray holes 1123. The spray holes 1123 are arranged along the length of the spray arm 11, ensuring that the water flow can be evenly sprayed to all areas inside the dishwasher 1 during the rotation of the spray arm 11. Through these spray holes 1123, the water flow can cover all areas inside the dishwasher 1, including hard-to-reach edges and corners, thereby ensuring that each piece of tableware is thoroughly cleaned.

[0062] In this embodiment, the spray arm 11 can be adjusted in length and shape according to actual application requirements to adapt to the structure of dishwasher 1 of different sizes. The spray arm 11 is made of corrosion-resistant, high-strength material to ensure its durability and reliability in long-term use.

[0063] For example, at least one end of the spray arm 11 is telescopic. This telescopic design allows the spray arm 11 to flexibly adjust its length during rotation according to changes in the internal space of the dishwasher 1 or cleaning needs.

[0064] With this extendable design, the spray arm 11 can adapt to different spatial distances when contacting the inner wall, ensuring comprehensive cleaning coverage in various situations. Even when the interior shape of the dishwasher 1 is irregular, the spray arm 11 can adjust its length to ensure that the water flow covers all areas, especially edges and corners, further improving the cleaning effect.

[0065] Furthermore, the spray arm 11 includes a first spray arm 111 and a second spray arm 112 with an internal spray water channel. The first spray arm 111 is rotatably disposed inside the dishwasher 1 and maintains a gap with the inner wall of the dishwasher 1. The first end of the second spray arm 112 is disposed on the first spray arm 111, and the second end abuts against the inner wall of the dishwasher 1.

[0066] Specifically, the design of the first spray arm 111 ensures that it can rotate flexibly inside the dishwasher 1, while the contact between one end of the second spray arm 112 and the inner wall ensures that the spray arm 11 can effectively clean the corners and hard-to-reach areas inside the dishwasher 1 during rotation, ensuring that every area inside the dishwasher 1 is thoroughly cleaned.

[0067] When the end of the second spray arm 112 contacts the inner wall of the dishwasher 1, it moves along a path along the inner wall during rotation. This path ensures that the spray holes 1123 on the spray arm 11 cover all areas inside the dishwasher 1, including hard-to-reach edges and corners. Because the second spray arm 112 always remains in contact with the inner wall, this design ensures that the movement trajectory of the spray arm 11 covers the entire interior of the dishwasher 1, thus achieving all-around cleaning.

[0068] Preferably, as a specific implementation of this embodiment, the first end of the second spray arm 112 is rotatably mounted on the first spray arm 111, allowing it to move synchronously with the rotation of the first spray arm 111. When the internal shape of the dishwasher 1 is irregular, the second spray arm 112 can adaptively adjust its position by its rotation angle relative to the first spray arm 111 to adapt to various shapes inside the dishwasher 1. This design not only makes the rotation of the spray arm 11 more stable but also ensures a uniform distribution of the spray water flow inside the dishwasher 1.

[0069] Furthermore, the second spray arm 112 is provided with a rotating wheel 1121, and the second end of the second spray arm 112 abuts against the inner wall of the dishwasher 1 through the rotating wheel 1121. The rotating wheel 1121 is installed at the second end of the second spray arm 112.

[0070] The rotating wheel 1121 enables the second spray arm 112 to slide stably along the inner wall of the dishwasher 1 during rotation. The design of the rotating wheel 1121 ensures that the second spray arm 112 remains in contact with the inner wall during rotation, guaranteeing that the spray water can evenly cover all cleaning areas inside the dishwasher 1, especially the edges and corners.

[0071] Preferably, the second end includes an end face 112-a, an active face 112-b, and a passive face 112-c. Specifically, the active face 112-b refers to the face that moves first in the direction of rotation and comes into contact with the water flow or air during the rotation of the second spray arm 112. This active face 112-b is usually the part with the strongest water flow, so its shape and structure need to be carefully considered in the design to optimize the water jet effect.

[0072] For example, the active surface 112-b is designed as a smooth curved surface, which can reduce the frictional resistance between the water flow and the surface, and ensure that the water flow maintains sufficient kinetic energy during the rotation of the spray arm 11, thereby enhancing the overall spraying effect of the water flow.

[0073] Conversely, the passive surface 112-c is the side opposite to the active surface 112-b. During rotation, the passive surface 112-c is located behind the spray arm 11, receiving less water flow impact.

[0074] Specifically, when the inner cavity of the dishwasher 1 is large, the end face 112-a of the second spray arm 112 will directly abut against the inner wall. In this case, to reduce friction and ensure smooth rotation of the spray arm 112, a single rotating wheel 1121 is used, preferably located on the side of the end face 112-a near the active surface 112-b. This design utilizes the kinetic energy of the active surface 112-b to ensure that, with the assistance of the rotating wheel 1121, the second spray arm 112 can rotate stably along the inner wall, thereby achieving efficient cleaning coverage.

[0075] If the inner cavity of the dishwasher 1 is relatively small, or if a more compact structure is required by the design, the rotating wheel 1121 is a single unit, located on the side of the active surface 112-b near the end face 112-a. This arrangement can further optimize the rotational efficiency of the second spray arm 112, reducing friction with the inner wall during rotation by better balancing the power of the spray arm 11, while ensuring that the water flow can be evenly sprayed to all areas of the dishwasher 1, thus improving the overall cleaning effect.

[0076] In addition, when the cavity of dishwasher 1 has a cuboid cross-section, the rotation path of the second spray arm 112 involves different corners and straight sections. In this case, a single rotating wheel 1121 may not be able to fully cover all cleaning areas. Therefore, there are two rotating wheels 1121, one on the side of the active surface 112-b near the end face 112-a, and the other on the side of the end face 112-a near the active surface 112-b. This dual arrangement ensures that the second spray arm 112 can smoothly pass through different parts of the cavity during rotation, avoiding rotational obstruction caused by the shape of the cavity.

[0077] This design allows the second spray arm 112 to adaptively adjust within the cuboid cavity, ensuring good contact with the inner wall throughout rotation and achieving comprehensive cleaning coverage. Simultaneously, this configuration effectively reduces friction during rotation, improving overall cleaning efficiency.

[0078] More preferably, there is a single rotating wheel 1121, located at the intersection of end face 112-a and active face 112-b. When the cross-section of the chamber is cuboid, the rotating wheel 1121, situated at the intersection of end face 112-a and active face 112-b, effectively adapts to the shape of the cuboid chamber, eliminating the need for additional rotating wheels 1121 in other locations. This design simplifies the structure while still ensuring that the spray arm 11 covers all areas within the dishwasher 1 during the entire rotation process, especially the edges and corners.

[0079] In addition, the rotating wheel 1121 is made of elastic material, which can effectively reduce friction and noise during rotation, while absorbing vibration, further improving the stability and durability of the second spray arm 112.

[0080] Furthermore, the second end is provided with a spray hole 1122 that communicates with the spray water path. The spray hole 1122 is opened on the passive surface 112-c of the second spray arm 112 and is spaced apart from the end surface 112-a.

[0081] Specifically, the spray holes 1122 are formed on the passive surface 112-c of the second spray arm 112. Compared with the active surface 112-b, the passive surface 112-c is located in a relative direction during rotation, and the water flow has a relatively weaker effect on it. Therefore, the passive surface 112-c is usually provided with auxiliary spray holes 1122. This design helps to rationally allocate water flow resources while ensuring cleaning effect, further improving the overall cleaning efficiency of the dishwasher 1.

[0082] Preferably, the second spray arm 112 is provided with spray holes 1122 that communicate with the internal spray water channel. To optimize the spray angle of the water flow, the opening of the spray hole 1122 is inclined toward the end face 112-a of the second end. With this inclined design, the water flow can better cover the cleaning area on the rotation path of the spray arm 11, especially those areas located at the edges and corners.

[0083] The angled spray nozzle 1122 design not only increases the coverage of the water flow but also enhances the cleaning effect, ensuring that every surface of the tableware is thoroughly cleaned.

[0084] Furthermore, the spray nozzle 1122 is spaced apart from the end face 112-a of the second end. This layout design allows the water flow from the spray nozzle 1122 to better cover the edges and corners inside the dishwasher 1, ensuring that all dishes are thoroughly cleaned without leaving any blind spots.

[0085] Furthermore, the first spray arm 111 is rotatably mounted inside the dishwasher 1 via a rotating shaft, and the second spray arm 112 is rotatably connected to the first spray arm 111 via a connecting part 113. This connection method allows the second spray arm 112 to maintain independent movement capability while rotating with the first spray arm 111, thereby covering more cleaning areas.

[0086] Preferably, the connecting part 113 connects the spray water path of the first spray arm 111 and the second spray arm 112.

[0087] The connecting part 113 is not only used for mechanical connection, but also connects the internal spray water channels of the first spray arm 111 and the second spray arm 112. With this design, water can flow smoothly from the first spray arm 111 into the second spray arm 112, and be evenly sprayed into the interior of the dishwasher 1 through the nozzles, ensuring a comprehensive cleaning effect.

[0088] In addition, the upper end face 112-a of the first spray arm 111 and the second spray arm 112 is provided with spray holes 1123 that communicate with the spray water channel. These spray holes 1123 are arranged along the length of the spray arm 11 to ensure that the water flow can evenly cover every corner inside the dishwasher 1 during the rotation of the spray arm 11, especially those hard-to-clean edges and corner areas.

[0089] Furthermore, in order to achieve effective water flow transmission and flexible rotation of the second spray arm 112, the second spray arm 112 is connected to the first spray arm 111 via a hollow second rotating shaft 1131.

[0090] Specifically, the connecting part 113 includes a hollow second rotating shaft 1131. This hollow design allows water to flow smoothly between the first spray arm 111 and the second spray arm 112, ensuring that the spray water paths of the two are connected, thereby achieving a wider cleaning coverage.

[0091] Furthermore, the first spray arm 111 and / or the second spray arm 112 are provided with mounting holes 1132 communicating with the spray water path. The connecting part 113 connects the spray water path of the first spray arm 111 and the second spray arm 112 by cooperating with the mounting hole 1132, so that water can smoothly enter the second spray arm 112 from the first spray arm 111 through the second rotating shaft 1131 and be sprayed out through the nozzle, ensuring that the water flow can be evenly distributed during the cleaning process. Preferably, one end of the second rotating shaft 1131 is fixedly connected to the second spray arm 112, and the other end is installed in the mounting hole 1132 of the first spray arm 111. This design not only ensures the connectivity of the water path, but also enhances the stability of the structure, so that the second spray arm 112 can maintain stable operation during rotation.

[0092] With this design, the spray structure in this embodiment not only improves the transmission efficiency of water flow between the spray arms 11, but also ensures the comprehensiveness and uniformity of the cleaning coverage, significantly improving the overall cleaning effect of the dishwasher 1.

[0093] Furthermore, the second spray arm 112 is provided with a protruding support rib 1133, which is located around the second rotating shaft 1131. The purpose of this support rib 1133 is to provide additional structural support, ensuring good connection and stability of the second spray arm 112 during the rotation of the first spray arm 111. The first spray arm 111 is provided with a mounting groove that mates with the support rib 1133. This mating design effectively prevents the connection 113 from loosening or shifting during rotation.

[0094] Preferably, the mounting groove is formed by a recess on the lower inner edge of the mounting hole 1132, and the mounting groove mates with the mounting end of the support rib 1133. This extended design allows the second rotating shaft 1131 and the support rib 1133 to better withstand the external forces generated during rotation, thereby improving the durability and reliability of the entire spray structure.

[0095] Furthermore, the connecting portion 113 is located at the end of the first spray arm 111 away from the rotation axis. This arrangement allows the second spray arm 112 to be positioned appropriately, thereby expanding the cleaning coverage area during rotation and ensuring that all areas inside the dishwasher 1 are thoroughly cleaned.

[0096] Preferably, the connecting portion 113 is disposed on the upper end face 112-a of the first spray arm 111. This design not only optimizes the water transmission path, allowing water to smoothly enter the second spray arm 112 from the first spray arm 111 and be evenly sprayed into the dishwasher 1 through the nozzles, but also further improves the convenience of disassembly. Since the connecting portion 113 is located on the upper end face 112-a, disassembly does not require complicated operations, making maintenance and replacement of parts more convenient and significantly improving maintenance efficiency.

[0097] Furthermore, as a specific implementation of this embodiment, the center of the first spray arm 111 is located on the first rotating shaft 12. This structural design ensures the smooth rotation and effective coverage of the spray arm 11. Depending on actual cleaning needs, a connecting part 113 can be provided at one end of the first spray arm 111 for connecting the second spray arm 112 or other additional cleaning components. This configuration significantly improves the cleaning capability of the dishwasher 1 while maintaining a simple structure.

[0098] In another embodiment of this invention, there are two connecting parts 113, which are respectively connected to both ends of the first spray arm 111. This double-end connection design allows for the simultaneous connection of two second spray arms 112, thereby further expanding the cleaning coverage and ensuring that every corner inside the dishwasher 1 is effectively cleaned.

[0099] Furthermore, the connecting part 113 is a single unit located at one end of the rotation axis of the first spray arm 111. The spray holes 1123 are asymmetrically arranged relative to the rotation axis on the side of the first spray arm 111 with the connecting part 113 and the side without the connecting part 113. On the side without the connecting part 113, the spray holes 1123 extend further away from the rotation axis. To optimize the balance and dynamic performance of the spray arm 11, special consideration has been given to the layout of the spray holes 1123 on the first spray arm 111.

[0100] Specifically, one end of the first spray arm 111 is provided with a connecting part 113, which is located on one side of the rotation axis of the first spray arm 111. In order to maintain dynamic balance during rotation, the spray holes 1123 on the first spray arm 111 are arranged asymmetrically with respect to the rotation axis.

[0101] On the side with the connecting part 113, since the second spray arm 112 is connected to this side, the number and distribution of spray holes 1123 are relatively small; while on the side without the second spray arm 112 connected, there are more spray holes 1123, and these spray holes 1123 extend further away from the rotation axis. This layout design ensures that the first spray arm 111 can maintain good dynamic balance during rotation, thereby achieving smooth rotational movement.

[0102] This asymmetrical layout of the spray nozzles 1123 is designed to balance the power, preventing vibration or instability caused by excessive weight on one side when the first spray arm 111 rotates. By optimizing the distribution of the spray nozzles 1123, the spray structure in this embodiment not only provides efficient cleaning but also ensures the stability and durability of the system during operation.

[0103] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A dishwasher, characterized in that, The dishwasher includes a spray arm (11) with spray holes (1123) communicating with the spray water path. The spray arm (11) is rotatably mounted inside the dishwasher (1). At least one end of the spray arm (11) abuts against the inner wall of the dishwasher (1).

2. A dishwasher according to claim 1, characterized in that, The spray arm includes a first spray arm (111) and a second spray arm (112); The first spray arm (111) is rotatably disposed inside the dishwasher (1) and maintains a gap with the inner wall of the dishwasher; The first end of the second spray arm (112) is disposed on the first spray arm (111), and the second end abuts against the inner wall of the dishwasher; Preferably, the first end of the second spray arm (112) is rotatably mounted on the first spray arm (111).

3. A dishwasher according to claim 2, characterized in that, The second spray arm (112) is provided with a rotating wheel (1121), and the second end of the second spray arm (112) abuts against the inner wall of the dishwasher through the rotating wheel (1121); Preferably, the second end includes an end face (112-a), an active face (112-b), and a passive face (112-c); The active surface (112-b) is the side of the second spray arm (112) that moves first in the direction of rotation and comes into contact with the water flow or air during the rotation process; The passive surface (112-c) is a surface that is positioned opposite to the active surface (112-b); The rotating wheel (1121) is a single unit, located on the end face (112-a) near the active surface (112-b); Alternatively, there may be one rotating wheel (1121) disposed on the side of the active surface (112-b) near the end surface (112-a); or there may be two rotating wheels (1121) disposed on the side of the end surface (112-a) near the active surface (112-b) and the side of the active surface (112-b) near the end surface (112-a), respectively. More preferably, the rotating wheel (1121) is a single wheel, disposed at the intersection of the end face (112-a) and the active face (112-b), and the rotating wheel (1121) is made of an elastic material.

4. A dishwasher according to claim 2 or 3, characterized in that, The first spray arm (111) is rotatably mounted inside the dishwasher via a rotating shaft; The second spray arm (112) is rotatably connected to the first spray arm (111) via a connecting part (113); Preferably, the connecting part (113) connects the spray water path of the first spray arm (111) and the second spray arm (112); The second end is provided with a spray hole (1122) that communicates with the spray water path; The spray hole (1122) is opened on the passive surface (112-c) of the second spray arm (112) and is spaced apart from the end face (112-a); Preferably, the opening of the injection hole (1122) is inclined toward the end face (112-a).

5. A dishwasher according to claim 4, characterized in that, Spray holes (1123) communicating with the spray water channel are opened on the upper end face of the first spray arm (111) and the second spray arm (112); The spray holes (1123) are arranged along the length of the first spray arm (111) and the second spray arm (112).

6. A dishwasher according to claim 4, characterized in that, The connecting part (113) includes a hollow second rotating shaft (1131); The first spray arm (111) and / or the second spray arm (112) are provided with mounting holes (1132) that communicate with the spray water path; The connecting part (113) connects the spray water path of the first spray arm (111) and the second spray arm (112) by cooperating with the mounting hole (1132); Preferably, one end of the second rotating shaft (1131) is fixedly connected to the second spray arm (112), and the other end is fitted into the mounting hole (1132) of the first spray arm (111).

7. A dishwasher according to claim 6, characterized in that, The second rotating shaft (1131) is provided with a support rib (1133) protruding from the surface of the second spray arm (112) on its periphery, and the first spray arm (111) is provided with a mounting groove that cooperates with the support rib (1133). Preferably, the mounting end of the support rib (1133) is formed by extending from the second spray arm (112) in a direction away from the second spray arm, and its end face extends in a direction away from the radial direction; The mounting groove is formed by the recessed lower inner edge of the mounting hole (1132), and the mounting groove is fitted with the end face of the support rib (1133) for installation.

8. A dishwasher according to claim 7, characterized in that, The connecting part (113) is located at the end of the first spray arm (111) away from the rotation axis; Preferably, the connecting part (113) is disposed on the upper end face of the end of the first spray arm (111).

9. A dishwasher according to any one of claims 5-8, characterized in that, The center of the first spray arm (111) is located on the first rotating shaft (12). The connecting part (113) is a single unit, located at one end of the first spray arm (111); Alternatively, there may be two connecting parts (113), which are respectively located at both ends of the first spray arm (111).

10. A dishwasher according to claim 9, characterized in that, The connecting part (113) is one, and is located at one end of the rotating shaft of the first spray arm (111); The first spray arm (111) has a side with a connecting part (113) and a side without a connecting part (113), and the spray holes (1123) are asymmetrically arranged relative to the rotation axis. On the side without the connecting part (113), the spray hole (1123) extends to a more distant end away from the rotation axis.

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